The BATSE mission aboard CGRO observed the whole sky for 9 years in the 20 keV - 2 MeV energy band. Flat-fielding of the temporal variations in the background present in the data set has been accomplished through a GEANT3 Monte-Carlo simulation - the BATSE Mass Model (BAMM). The Earth Occultation technique (EOT) is used together with a maximum-likelihood imaging approach to construct all-sky maps with ~mCrab sensitivity. Additionally, a non-linear CLEAN algorithm is applied to the all-sky maps to remove large artefacts that are systematic of the EOT. The latest survey results produced through the application of this technique to a subset of the BATSE data set are presented.
@article{arxiv.astro-ph/0408406,
title = {Gamma-Ray All Sky Imaging with BATSE},
author = {A. B. Hill and E. J. Barlow and A. J. Bird and A. J. Dean and C. Ferguson and S. E. Shaw and M. J. Westmore and D. R. Willis},
journal= {arXiv preprint arXiv:astro-ph/0408406},
year = {2007}
}
Comments
4 pages, 4 figures. Proceedings of the 5th INTEGRAL Workshop, Munich 16-20 February 2004. ESA SP-552